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公开(公告)号：US2664709A
公开(公告)日：1954-01-05
申请号：US23640251
申请日：1951-07-12
Applicant: CHOLLET PHILIP E
Inventor： CHOLLET PHILIP E
IPC: B60C25/14
CPC classification number: B60C25/142 , Y10T29/49826
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